Foglamp 500Ff. Driving Lamp Set with Clear Lens The auxiliary light uses proven Halogen technology with Free-Form reflectors to deliver excellent lighting performance and visibility in all types of weather. The Free-Form reflector technology from HELLA perfectly co-ordinates the shape of the reflector to direct the light source precisely to provide the most efficient possible light output. The result is 20% more light performance and an extremely even distribution, which eliminates hazardous dark patches in the beam pattern. *By request/order.